I've managed to make some real progress tonight, with the top 'layer' basically finished. I may add a few more small panels for the sake of detail, but honestly I don't think they'll actually be needed. The model is intended to be seen from about this distance at its closest anyways.
I have noticed a small issue in the black panels however, and may require rebuilding them. Which is a little unfortunate because they look pretty sharp as is. The progress on the remainder of this side of the wing should move pretty quickly now.